Infrared laser and photosensitive plate liquid crystal screen-based gun weapon simulation training device and method

Abstract

An infrared laser and photosensitive plate liquid crystal screen-based artillery weapon simulation training device and method belong to the technical field of weapon simulation training equipment. The device is composed of an artillery training launch terminal, a photosensitive plate liquid crystal screen training target, a calibration module, a training control host, a projectile impact calculation and evaluation module, and a training record module. The artillery training launch terminal launches coded infrared laser, the photosensitive plate liquid crystal screen training target displays a dynamic training scene through a liquid crystal display screen and collects infrared laser hit coordinates through an arrayed photosensitive plate and a photosensitive sampling circuit; the calibration module establishes a mapping relationship between the photosensitive coordinates and the screen display coordinates, and the projectile impact calculation and evaluation module generates a virtual projectile impact point, a hit result and a training score according to the screen hit coordinates, the type of artillery, the type of projectile, the virtual range and the target motion state. The device can realize closed-loop training of dynamic display, photosensitive coordinate collection, projectile impact calculation and training evaluation, and improve the safety and training effect of artillery weapon simulation training.

Description

Technical Field

[0001] This invention relates to a training device and method for simulating artillery weapon training. Specifically, it uses a combination of infrared laser and photosensitive LCD screen to conduct dynamic scene simulation training of artillery weapons, belonging to the technical field of weapon simulation training equipment. Background Technology

[0002] Artillery weapon training typically involves multiple stages, including aiming, tracking, firing, impact observation, deviation correction, and training evaluation. Traditional live-fire training places high demands on the training grounds, safety, ammunition consumption, and organizational conditions, resulting in high training costs. Furthermore, it is unsuitable for repeated training indoors, in small training ranges, or in high-frequency teaching environments. Therefore, using simulation training devices to replace artillery weapon firing training has become an important way to reduce training costs, improve training safety, and increase training frequency.

[0003] Common solutions in existing simulation training equipment include fixed target laser shooting, projection display of training scenes, camera recognition of laser spots, and separate photosensitive target surfaces. While these solutions can achieve hit detection or training feedback to a certain extent, they still have the following problems: fixed target training content is limited and it is difficult to display moving targets, terrain backgrounds, impact effects, and dynamic training prompts; while projection or display screen solutions can display dynamic scenes, ordinary display screens themselves cannot directly collect infrared laser hit coordinates; camera or CCD spot recognition is easily affected by factors such as ambient light, screen reflections, changes in display brightness, camera angle distortion, and occlusion, limiting recognition stability and real-time performance; while separate photosensitive target surfaces can collect laser hit positions, they are usually insufficiently integrated with dynamic display images, making it difficult to form an integrated training loop of display, acquisition, calculation, and evaluation.

[0004] For simulated artillery training, simply obtaining a single hit point on the screen is insufficient to reflect real training needs. Artillery firing often requires consideration of factors such as virtual range, artillery type, ammunition type, target motion state, flight delay, impact deviation, and correction amounts. If the simulation training device only outputs simple hit coordinates or ring numbers, it is difficult to train trainees' ability to judge target lead, impact observation, deviation correction, and overall firing effect. Therefore, a training device is needed that combines infrared laser hit detection, dynamic LCD target display, and artillery impact calculation.

[0005] An array-type photosensitive plate can perform photoelectric detection on incident infrared lasers and output the corresponding photosensitive coordinates. If the array-type photosensitive plate is configured to correspond with the effective display area of ​​an LCD screen, and a mapping relationship between the photosensitive coordinates and the screen display coordinates is established through calibration, the infrared laser hit position can be directly acquired while the LCD screen displays the dynamic training scene, avoiding the interference of illumination and reflection caused by relying solely on camera visual recognition. Based on this, combined with artillery shell impact calculation and evaluation, a complete training process can be formed, from aiming and firing, hit coordinate acquisition, screen coordinate transformation, virtual impact generation to training record evaluation.

[0006] Therefore, there is an urgent need for a simulation training device and method suitable for artillery weapon training, which can realize dynamic scene display on LCD screen, infrared laser hit coordinate acquisition, virtual bullet impact calculation and training effect evaluation under the conditions of small space, low cost and high safety. Summary of the Invention

[0007] To address the problem that dynamic target display, infrared laser hit coordinate acquisition, artillery shell impact calculation, and training result evaluation are difficult to complete in a closed loop within the same training system in existing artillery simulation training equipment, this invention adopts an artillery weapon simulation training device and method based on infrared laser and photosensitive LCD screen.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A simulated training device for artillery weapons based on infrared laser and a photosensitive LCD screen comprises an artillery training firing terminal, a photosensitive LCD screen training target, a calibration module, a training control host, a projectile impact calculation and evaluation module, and a training recording module. The artillery training firing terminal is communicatively connected to the training control host; the photosensitive LCD screen training target is also communicatively connected to the training control host; the calibration module is connected to both the photosensitive LCD screen training target and the training control host; the projectile impact calculation and evaluation module is connected to the training control host; and the training recording module is connected to the training control host.

[0009] The artillery training firing terminal consists of a training launcher, an adjustable mounting base, an infrared laser emitter, a firing signal acquisition unit, an azimuth acquisition unit, an elevation acquisition unit, an identification coding unit, and a firing parameter input unit. The adjustable mounting base is located at the front end of the training launcher or on the aiming reference axis. The infrared laser emitter is fixed to the adjustable mounting base and arranged along the aiming reference direction of the training launcher. The adjustable mounting base is used to adjust the installation angle of the infrared laser emitter so that the infrared laser emission direction is consistent with the aiming reference direction of the training launcher. The firing signal acquisition unit is located at the firing operation position of the training launcher; the azimuth and elevation acquisition units are located at the attitude acquisition positions of the training launcher; the identification coding unit is connected to the infrared laser emitter or the training control host; and the firing parameter input unit is communicatively connected to the training control host.

[0010] The photosensitive LCD training target comprises a liquid crystal display screen, an array-type photosensitive plate, a mounting frame, a screen control board, a photosensitive sampling circuit, and at least one of an infrared transmission protective layer and an infrared light guide layer. The liquid crystal display screen is fixed within the mounting frame and located on the display side of the training target. The array-type photosensitive plate is positioned corresponding to the effective display area of ​​the liquid crystal display screen. The screen control board is connected to the liquid crystal display screen, and the photosensitive sampling circuit is connected to the array-type photosensitive plate. Further, the infrared transmission protective layer is disposed on the light-emitting side of the liquid crystal display screen, and the array-type photosensitive plate is disposed inside the infrared transmission protective layer, at a corresponding receiving position on the light-emitting side of the liquid crystal display screen, or at a corresponding receiving position on the back side of the liquid crystal display screen. The infrared light guide layer is disposed on the light-emitting side of the liquid crystal display screen, in the edge region, or within the protective layer, and the array-type photosensitive plate is disposed at the edge receiving position or the back receiving position of the infrared light guide layer.

[0011] An array-type photosensitive plate is formed by arranging multiple photosensitive receiving units. Further, these multiple photosensitive receiving units are arranged in a row-column matrix, a partition matrix, a bar scan array, an edge light-guiding receiving array, or a combination of the above methods, with the receiving areas of the multiple photosensitive receiving units corresponding to the effective display area of ​​the liquid crystal display screen. When infrared laser light shines on the training target of the photosensitive plate's liquid crystal screen, the infrared laser light passes through the infrared transmission protective layer or the infrared light guiding layer and enters the receiving area of ​​the array-type photosensitive plate, where the corresponding photosensitive receiving units generate photosensitive signals.

[0012] The photosensitive sampling circuit consists of a filter circuit, an amplifier circuit, a comparator circuit, a gating circuit, an analog-to-digital converter circuit, and a processing circuit. The filter circuit is connected to the array-type photosensitive plate, the amplifier circuit is connected to the filter circuit, the comparator circuit is connected to the amplifier circuit, the gating circuit is connected to multiple photosensitive receiving units, the analog-to-digital converter circuit is connected to the amplifier circuit or the comparator circuit, and the processing circuit is connected to the gating circuit and the analog-to-digital converter circuit.

[0013] When a single photosensitive receiving unit is triggered, the processing circuit uses the coordinates corresponding to the row / column position, partition position, or scan position of that photosensitive receiving unit in the array photosensitive plate as the photosensitive coordinates. When multiple adjacent photosensitive receiving units are triggered, the processing circuit performs weighted calculations based on the signal strength, peak value, or triggering sequence of the adjacent photosensitive receiving units to form the photosensitive coordinates. The processing circuit also identifies the valid infrared laser signal based on the coded pulse characteristics and sends the photosensitive coordinates to the training control host.

[0014] The calibration module consists of a calibration pattern generation unit, a calibration acquisition unit, and a mapping parameter generation unit. The calibration pattern generation unit is connected to the LCD screen, the calibration acquisition unit is connected to the photosensitive sampling circuit, and the mapping parameter generation unit is connected to the training control host. The calibration pattern generation unit controls the LCD screen to display multiple calibration points, calibration lines, or grid patterns. The calibration acquisition unit receives the corresponding photosensitive positions acquired by the array of photosensitive plates. The mapping parameter generation unit establishes a mapping relationship between the photosensitive coordinate system and the screen display coordinate system based on the position of the calibration pattern in the screen display coordinate system and the corresponding photosensitive position.

[0015] After replacing the LCD screen, adjusting the installation position of the array photosensitive plate, changing the display resolution of the LCD screen, changing the installation angle of the training target, or reinstalling the photosensitive plate LCD screen training target, the calibration module regenerates the mapping parameters.

[0016] The training control host consists of an instructor control unit, a target scene generation unit, a coordinate transformation unit, a data communication unit, and a feedback display control unit. The instructor control unit is connected to the target scene generation unit, which is connected to the screen control board. The coordinate transformation unit is connected to the calibration module and the photosensitive sampling circuit. The data communication unit is connected to the artillery training firing terminal, the photosensitive LCD training target, the impact calculation and evaluation module, and the training record module. The feedback display control unit is connected to the screen control board.

[0017] The data communication unit receives training firing parameters and firing information from the artillery training firing terminal, receives photosensitive coordinates from the photosensitive sampling circuit, and receives mapping parameters from the calibration module. It then sends the screen hit coordinates, training firing parameters, and training subject parameters to the impact calculation and evaluation module. The coordinate transformation unit converts the photosensitive coordinates output by the photosensitive sampling circuit into screen hit coordinates on the LCD screen based on the mapping relationship generated by the calibration module. The feedback display control unit controls the screen control board to update the LCD screen display based on the impact feedback information output by the impact calculation and evaluation module.

[0018] The impact calculation and evaluation module consists of a virtual range setting unit, a shell type and ammunition setting unit, a target motion setting unit, a target motion calculation unit, a flight delay calculation unit, an impact deviation calculation unit, a hit determination unit, a correction prompt unit, and a scoring unit. The virtual range setting unit, shell type and ammunition setting unit, and target motion setting unit are connected to the training control host. The target motion calculation unit is connected to the target motion setting unit and the flight delay calculation unit. The flight delay calculation unit is connected to the virtual range setting unit and the shell type and ammunition setting unit. The impact deviation calculation unit is connected to the coordinate transformation unit, the target motion calculation unit, and the flight delay calculation unit. The hit determination unit is connected to the impact deviation calculation unit. The correction prompt unit and the scoring unit are connected to the hit determination unit.

[0019] The impact calculation and evaluation module receives the screen hit coordinates, artillery type, ammunition type, virtual range, target motion direction, target motion speed, lead time, environmental correction parameters, and training subject rules. The flight delay calculation unit determines the virtual flight delay based on the artillery type, ammunition type, and virtual range; the target motion calculation unit determines the target's predicted position at the moment of impact based on the target motion direction, target motion speed, and virtual flight delay; the impact deviation calculation unit generates a virtual impact point based on the screen hit coordinates, lead time, and environmental correction parameters, and calculates the lateral and longitudinal deviations of the virtual impact point relative to the target's predicted position; the hit determination unit generates a hit, near miss, or miss result based on the lateral and longitudinal deviations and the target determination area; the correction prompt unit generates a direction correction prompt based on the lateral and longitudinal deviations; and the scoring unit generates a training score based on the hit result, deviation, firing timing, and training subject rules.

[0020] The training record module consists of a personnel information recording unit, a training subject recording unit, a firing data recording unit, a hit data recording unit, an evaluation data recording unit, and a report generation unit. The firing data recording unit is connected to the artillery training firing terminal via the training control host; the hit data recording unit is connected to the training control host; the evaluation data recording unit is connected to the training control host or directly to the impact calculation and evaluation module; and the report generation unit is connected to the personnel information recording unit, training subject recording unit, firing data recording unit, hit data recording unit, and evaluation data recording unit, respectively.

[0021] This invention also provides a method for simulating training artillery weapons based on infrared laser and a photosensitive liquid crystal screen, the method comprising: S1, conduct training settings, establish training subjects through the training control host, and set the artillery type, ammunition type, virtual range, target type, target motion status and scoring rules; S2, to display the scene, showing the artillery training scene, target status and training prompts on the LCD screen; S3, coordinate calibration is performed. The calibration module controls the LCD screen to display the calibration pattern. The array photosensitive plate collects the corresponding photosensitive position and establishes the mapping relationship between the photosensitive coordinate system of the array photosensitive plate and the screen display coordinate system of the LCD screen. S4, aiming and firing: the trainee operates the artillery training launch terminal to aim and fire, and the infrared laser emitter emits coded infrared laser along the aiming reference direction of the training launcher toward the photosensitive LCD screen training target. S5 performs photosensitive acquisition. The array photosensitive plate receives the incident infrared laser and generates a photosensitive signal. The photosensitive sampling circuit filters, amplifies, compares, selects, and converts the photosensitive signal to form photosensitive coordinates. S6, perform coordinate transformation, train the control host to convert photosensitive coordinates into screen hit coordinates according to the mapping relationship; S7 performs impact calculation. The impact calculation and evaluation module determines the virtual flight delay, the predicted position of the target at the moment of impact, and the virtual impact point based on the screen hit coordinates, gun type, shell type, virtual range, target motion state, setup lead, and environmental correction parameters. S8, perform result evaluation. The impact calculation and evaluation module generates hit results, deviation direction, correction prompts and training scores based on the positional relationship between the virtual impact point and the target area. S9 records feedback, displays bounce feedback on the LCD screen, and the training record module records training data and generates a training report.

[0022] Compared with existing technologies, the advantages of this invention are as follows: The photosensitive plate LCD screen training target sets the dynamic training scene display area of ​​the LCD screen and the infrared laser receiving area of ​​the array photosensitive plate accordingly, enabling dynamic display and photosensitive coordinate acquisition on the same training target surface; the hit coordinates are directly obtained by the array photosensitive plate and photosensitive sampling circuit, without relying on cameras, CCDs, or visual recognition methods to obtain infrared laser hit coordinates, which can reduce the impact of ambient light, screen reflection, occlusion, and camera angle changes on the stability of hit detection; the calibration module establishes a mapping relationship between photosensitive coordinates and screen display coordinates, improving the coordinate consistency under different screen sizes, different installation positions, and different photosensitive plate arrangements; the impact calculation and evaluation module further converts the screen hit coordinates into virtual impact points for artillery, and generates hit results, correction prompts, and training scores by combining the target motion state and virtual flight delay, expanding the training content from ordinary laser target practice to target tracking, impact observation, deviation correction, and training evaluation for artillery weapons. Attached Figure Description

[0023] Appendix Figure 1 This is a system overall structure block diagram of the artillery weapon simulation training device of the present invention; Appendix Figure 2This is a schematic diagram of the structure of the artillery training and launching terminal of the present invention; Appendix Figure 3 This is a schematic diagram of the layered structure of the photosensitive plate liquid crystal screen training target of the present invention; Appendix Figure 4 This is a schematic diagram showing the coordinate correspondence of the training target of the photosensitive plate liquid crystal screen of the present invention; Appendix Figure 5 This is a schematic diagram of the arrangement of the photosensitive receiving units of the array-type photosensitive plate of the present invention, wherein... Figure 5 'a' represents the row and column matrix arrangement. Figure 5 b represents the partition matrix arrangement. Figure 5 c represents a bar scan array arrangement. Figure 5 d represents the edge light guide receiving arrangement; Appendix Figure 6 This is a schematic diagram of the connection of the photosensitive sampling circuit of the present invention; Appendix Figure 7 This is a schematic diagram showing the relationship between the calibration module and the coordinate mapping of the present invention; Appendix Figure 8 This is a functional connection diagram of the training control host of the present invention; Appendix Figure 9 This is a functional connection diagram of the impact calculation and evaluation module of the present invention; Appendix Figure 10 This is a flowchart of the simulation training method for artillery weapons of the present invention.

[0024] Reference numerals: 1. Artillery training firing terminal; 11. Training launcher; 12. Adjustable mounting base; 13. Infrared laser emitter; 14. Firing signal acquisition unit; 15. Azimuth angle acquisition unit; 16. Elevation angle acquisition unit; 17. Identification coding unit; 18. Launch parameter input unit; 19. Communication module; 2. Photosensitive plate LCD screen training target; 21. LCD screen; 22. Array photosensitive plate; 221. Photosensitive receiving unit; 222. Edge light guide; 23. Infrared transmission protective layer; 24. Infrared light guide layer; 25. Mounting frame; 26. Screen control board; 27. Photosensitive sampling circuit; 271. Filtering circuit; 272. Amplification circuit; 273. Comparison circuit; 274. Gating circuit; 275. Analog-to-digital conversion circuit; 276. Processing circuit; 3. Calibration module; 31. Calibration pattern generation unit; 32. Calibration acquisition unit; 33. 4. Training Control Host; 41. Instructor Control Unit; 42. Target Scene Generation Unit; 43. Coordinate Transformation Unit; 44. Data Communication Unit; 45. Feedback Display Control Unit; 5. Impact Calculation and Evaluation Module; 51. Virtual Range Setting Unit; 52. Artillery Type and Ammunition Type Setting Unit; 53. Target Motion Setting Unit; 54. Target Motion Calculation Unit; 55. Flight Delay Calculation Unit; 56. Impact Deviation Calculation Unit; 57. Hit Judgment Unit; 58. Correction Prompt Unit; 59. Scoring Unit; 6. Training Record Module; 61. Personnel Information Recording Unit; 62. Training Subject Recording Unit; 63. Firing Data Recording Unit; 64. Hit Data Recording Unit; 65. Evaluation Data Recording Unit; 66. Report Generation Unit; A. Aiming Reference Direction; B. Infrared Laser Emission Direction or Incident Direction; C. Visible Image Display Direction. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] like Figure 1 As shown, this embodiment provides a simulated training device for artillery weapons based on infrared laser and a photosensitive LCD screen. It includes an artillery training firing terminal 1, a photosensitive LCD screen training target 2, a calibration module 3, a training control host 4, a projectile impact calculation and evaluation module 5, and a training recording module 6. The artillery training firing terminal 1 emits coded infrared laser light onto the photosensitive LCD screen training target 2 and is communicatively connected to the training control host 4. The photosensitive LCD screen training target 2 is also communicatively connected to the training control host 4. The calibration module 3 is connected to both the photosensitive LCD screen training target 2 and the training control host 4. The projectile impact calculation and evaluation module 5 is connected to the training control host 4, and the training recording module 6 is connected to the training control host 4.

[0027] like Figure 2 As shown, the artillery training firing terminal 1 includes a training launcher 11, an adjustable mounting base 12, an infrared laser emitter 13, a firing signal acquisition unit 14, an azimuth acquisition unit 15, an elevation acquisition unit 16, an identification coding unit 17, a firing parameter input unit 18, and a communication module 19. The adjustable mounting base 12 is located at the front end of the training launcher 11 or on the aiming reference axis. The infrared laser emitter 13 is fixed to the adjustable mounting base 12 and arranged along the aiming reference direction A of the training launcher 11. The adjustable mounting base 12 is used to adjust the installation angle of the infrared laser emitter 13 so that the infrared laser emission direction B is consistent with the aiming reference direction A of the training launcher 11. The firing signal acquisition unit 14 is located at the firing operation position of the training launcher 11. The azimuth acquisition unit 15 and the elevation acquisition unit 16 are located at the attitude acquisition position of the training launcher 11. The identification coding unit 17 is connected to the infrared laser emitter 13 or the training control host 4. The firing parameter input unit 18 is communicatively connected to the training control host 4.

[0028] During training, trainees operate the training launcher 11 for aiming and firing. The firing signal acquisition unit 14 acquires the firing action, and the infrared laser emitter 13 responds by emitting coded infrared laser. The azimuth acquisition unit 15 and the elevation acquisition unit 16 acquire the attitude data of the training launcher 11. The identification encoding unit 17 provides an identification code for the infrared laser signal or training firing data. The firing parameter input unit 18 is used to input the artillery type, ammunition type, virtual range, target number, lead time, or training subject parameters. All of the above data is transmitted to the training control host 4 via the communication module 19.

[0029] like Figure 3 As shown, the photosensitive plate LCD training target 2 includes a liquid crystal display screen 21, an array-type photosensitive plate 22, an infrared transmission protective layer 23, an infrared light guide layer 24, a mounting frame 25, a screen control board 26, and a photosensitive sampling circuit 27. In actual implementation, the infrared transmission protective layer 23 and the infrared light guide layer 24 can be selected individually or simultaneously. The liquid crystal display screen 21 is fixed inside the mounting frame 25 and located on the display side of the training target. The array-type photosensitive plate 22 is configured corresponding to the effective display area of ​​the liquid crystal display screen 21. The screen control board 26 is connected to the liquid crystal display screen 21, and the photosensitive sampling circuit 27 is connected to the array-type photosensitive plate 22.

[0030] An infrared transmission protective layer 23 is disposed on the light-emitting side of the liquid crystal display screen 21. An array-type photosensitive plate 22 is disposed inside the infrared transmission protective layer 23, at a corresponding receiving position on the light-emitting side of the liquid crystal display screen 21, or at a corresponding receiving position on the back side of the liquid crystal display screen 21. Infrared laser light enters the receiving area of ​​the array-type photosensitive plate 22 through the infrared transmission protective layer 23, or is transmitted to the array-type photosensitive plate 22 on the back side of the liquid crystal display screen 21 via the liquid crystal display screen 21 and its light-transmitting area. Further, an infrared light guide layer 24 is disposed on the light-emitting side, edge area, or within the protective layer of the liquid crystal display screen 21. The array-type photosensitive plate 22 is disposed at the edge receiving position or the back receiving position of the infrared light guide layer 24. The infrared light guide layer 24 and the receiving area of ​​the array-type photosensitive plate 22 are correspondingly disposed. After the infrared laser light is incident on the infrared light guide layer 24, it is guided to the receiving area of ​​the array-type photosensitive plate 22.

[0031] like Figure 4 As shown, the effective display area of ​​the liquid crystal display screen 21 corresponds to the receiving area of ​​the array-type photosensitive plate 22. The liquid crystal display screen 21 is used to display artillery training scenarios, moving targets, target status, training prompts, and impact feedback, while the array-type photosensitive plate 22 is used to receive incident infrared laser light and form photosensitive coordinates. Through this correspondence, the photosensitive plate liquid crystal display training target 2 can complete dynamic scene display and infrared laser hit coordinate acquisition on the same target surface.

[0032] like Figure 5 As shown, the array-type photosensitive plate 22 is formed by arranging multiple photosensitive receiving units 221. Further, the multiple photosensitive receiving units 221 are arranged in a row-column matrix, and the receiving areas of the row-column matrix correspond to the effective display areas of the liquid crystal display screen 21. Further, the multiple photosensitive receiving units 221 can be arranged in a partitioned matrix, a bar-scan array, an edge-guided light-receiving array, or a combination of the above. When an edge-guided light-receiving array is used, the edge light guide 222 guides the incident infrared laser to the corresponding photosensitive receiving unit 221.

[0033] When infrared laser light shines on the training target 2 of the photosensitive plate LCD screen, the infrared laser light enters the receiving area of ​​the array-type photosensitive plate 22 through the infrared transmission protective layer 23 or the infrared light guide layer 24. The corresponding photosensitive receiving unit 221 in the array-type photosensitive plate 22 generates a photosensitive signal. The hit coordinates are directly obtained by the array-type photosensitive plate 22 and the photosensitive sampling circuit 27, without being obtained through a camera, CCD or visual recognition method.

[0034] like Figure 6As shown, the photosensitive sampling circuit 27 includes a filter circuit 271, an amplifier circuit 272, a comparator circuit 273, a gating circuit 274, an analog-to-digital converter circuit 275, and a processing circuit 276. The filter circuit 271 is connected to the array-type photosensitive plate 22, the amplifier circuit 272 is connected to the filter circuit 271, the comparator circuit 273 is connected to the amplifier circuit 272, the gating circuit 274 is connected to multiple photosensitive receiving units 221, the analog-to-digital converter circuit 275 is connected to either the amplifier circuit 272 or the comparator circuit 273, and the processing circuit 276 is connected to the gating circuit 274 and the analog-to-digital converter circuit 275.

[0035] The working process of the photosensitive sampling circuit 27 is as follows: the filter circuit 271 filters the photosensitive signal output by the array photosensitive plate 22, the amplifier circuit 272 amplifies the filtered photosensitive signal, the comparison circuit 273 performs threshold judgment on the amplified photosensitive signal, the selection circuit 274 selects the triggered photosensitive receiving unit 221 or the corresponding partition, the analog-to-digital conversion circuit 275 converts the analog photosensitive signal into a digital signal, and the processing circuit 276 forms photosensitive coordinates based on the position and signal characteristics of the triggered photosensitive receiving unit 221.

[0036] When a single photosensitive receiving unit 221 is triggered, the processing circuit 276 uses the coordinates corresponding to the row / column position, partition position, or scan position of the photosensitive receiving unit 221 in the array photosensitive plate 22 as the photosensitive coordinates. When multiple adjacent photosensitive receiving units 221 are triggered, the processing circuit 276 performs weighted calculations based on the signal strength, peak value, or triggering sequence of the adjacent photosensitive receiving units 221 to form photosensitive coordinates. The processing circuit 276 also identifies the valid infrared laser signal based on the coded pulse characteristics and sends the photosensitive coordinates to the training control host 4.

[0037] like Figure 7 As shown, the calibration module 3 includes a calibration pattern generation unit 31, a calibration acquisition unit 32, and a mapping parameter generation unit 33. The calibration pattern generation unit 31 is connected to the LCD screen 21, the calibration acquisition unit 32 is connected to the photosensitive sampling circuit 27, and the mapping parameter generation unit 33 is connected to the training control host 4. The calibration pattern generation unit 31 controls the LCD screen 21 to display multiple calibration points, calibration lines, or grid patterns. The calibration acquisition unit 32 receives the corresponding photosensitive positions acquired by the array photosensitive plate 22. The mapping parameter generation unit 33 establishes a mapping relationship between the photosensitive coordinate system and the screen display coordinate system based on the position of the calibration pattern in the screen display coordinate system and the corresponding photosensitive position.

[0038] After replacing the LCD screen 21, adjusting the installation position of the array photosensitive plate 22, changing the display resolution of the LCD screen 21, changing the installation angle of the training target, or reinstalling the photosensitive plate LCD screen training target 2, the calibration module 3 regenerates the mapping parameters. The training control host 4 uses these mapping parameters to convert the photosensitive coordinates output by the photosensitive sampling circuit 27 into the screen hit coordinates on the LCD screen 21.

[0039] like Figure 8 As shown, the training control host 4 includes an instructor control unit 41, a target scene generation unit 42, a coordinate transformation unit 43, a data communication unit 44, and a feedback display control unit 45. The instructor control unit 41 is connected to the target scene generation unit 42, which is connected to the screen control board 26. The coordinate transformation unit 43 is connected to the calibration module 3 and the photosensitive sampling circuit 27. The data communication unit 44 is connected to the artillery training firing terminal 1, the photosensitive LCD training target 2, the impact calculation and evaluation module 5, and the training record module 6, respectively. The feedback display control unit 45 is connected to the screen control board 26.

[0040] The data communication unit 44 receives the training firing parameters and firing information output by the artillery training firing terminal 1, receives the photosensitive coordinates output by the photosensitive sampling circuit 27, receives the mapping parameters output by the calibration module 3, and sends the screen hit coordinates, training firing parameters, and training subject parameters to the impact calculation and evaluation module 5. The coordinate transformation unit 43 converts the photosensitive coordinates output by the photosensitive sampling circuit 27 into the screen hit coordinates on the LCD screen 21 according to the mapping relationship generated by the calibration module 3. The feedback display control unit 45 controls the screen control board 26 to update the display screen 21 according to the impact feedback information output by the impact calculation and evaluation module 5.

[0041] like Figure 9 As shown, the impact calculation and evaluation module 5 includes a virtual range setting unit 51, a shell type and ammunition setting unit 52, a target motion setting unit 53, a target motion calculation unit 54, a flight delay calculation unit 55, an impact deviation calculation unit 56, a hit determination unit 57, a correction prompt unit 58, and a scoring unit 59. The virtual range setting unit 51, shell type and ammunition setting unit 52, and target motion setting unit 53 are respectively connected to the training control host 4. The target motion calculation unit 54 is connected to the target motion setting unit 53 and the flight delay calculation unit 55. The flight delay calculation unit 55 is connected to the virtual range setting unit 51 and the shell type and ammunition setting unit 52. The impact deviation calculation unit 56 is connected to the coordinate transformation unit 43, the target motion calculation unit 54, and the flight delay calculation unit 55. The hit determination unit 57 is connected to the impact deviation calculation unit 56. The correction prompt unit 58 and the scoring unit 59 are respectively connected to the hit determination unit 57.

[0042] The working process of the impact calculation and evaluation module 5 is as follows: the flight delay calculation unit 55 determines the virtual flight delay based on the type of artillery, the type of ammunition, and the virtual range; the target motion calculation unit 54 determines the predicted position of the target at the moment of impact based on the target motion direction, the target motion speed, and the virtual flight delay; the impact deviation calculation unit 56 generates a virtual impact point based on the screen hit coordinates, the lead, and the environmental correction parameters, and calculates the lateral and longitudinal deviations of the virtual impact point relative to the predicted position of the target; the hit determination unit 57 generates a hit, near miss, or miss result based on the lateral deviation, the longitudinal deviation, and the target determination area; the correction prompt unit 58 generates a direction correction prompt based on the lateral and longitudinal deviations; and the scoring unit 59 generates a training score based on the hit result, the deviation, the firing timing, and the training subject rules.

[0043] The training record module 6 includes a personnel information recording unit 61, a training subject recording unit 62, a firing data recording unit 63, a hit data recording unit 64, an evaluation data recording unit 65, and a report generation unit 66. The firing data recording unit 63 is connected to the artillery training firing terminal 1 via the training control host 4. The hit data recording unit 64 is connected to the training control host 4. The evaluation data recording unit 65 is connected to the training control host 4 or directly to the impact calculation and evaluation module 5. The report generation unit 66 is connected to the personnel information recording unit 61, the training subject recording unit 62, the firing data recording unit 63, the hit data recording unit 64, and the evaluation data recording unit 65, respectively.

[0044] like Figure 10 As shown, the training method in this embodiment includes the following process.

[0045] S1, conduct training setup. The training control host 4 establishes training subjects through the instructor control unit 41, and sets the artillery type, ammunition type, virtual range, target type, target motion status, and scoring rules.

[0046] S2, Scene Display. The target scene generation unit 42 generates artillery training scenes, and the screen control board 26 controls the LCD screen 21 to display the artillery training scenes, target status, and training prompts.

[0047] S3, coordinate calibration is performed. Calibration module 3 controls LCD screen 21 to display calibration pattern, array photosensitive plate 22 collects corresponding photosensitive positions, and mapping parameter generation unit 33 establishes the mapping relationship between the photosensitive coordinate system of array photosensitive plate 22 and the screen display coordinate system of LCD screen 21.

[0048] S4, aim and fire. The trainee operates the artillery training launch terminal 1 to aim and fire. The infrared laser emitter 13 emits coded infrared laser along the aiming reference direction A of the training launcher 11 toward the photosensitive plate LCD screen training target 2.

[0049] S5, perform photosensitive acquisition. The array-type photosensitive plate 22 receives the incident infrared laser and generates a photosensitive signal. The photosensitive sampling circuit 27 performs filtering, amplification, comparison, gating and conversion processing on the photosensitive signal to form photosensitive coordinates.

[0050] S6, perform coordinate transformation. The coordinate transformation unit 43 in the training control host 4 converts the photosensitive coordinates into screen hit coordinates according to the mapping relationship.

[0051] S7, perform impact calculation. The impact calculation and evaluation module 5 determines the virtual flight delay, the predicted position of the target at the moment of impact, and the virtual impact point based on the screen hit coordinates, gun type, shell type, virtual range, target motion state, setup lead, and environmental correction parameters.

[0052] S8, perform result evaluation. The impact calculation and evaluation module 5 generates the hit result, deviation direction, correction prompts, and training score based on the positional relationship between the virtual impact point and the target area.

[0053] S9, feedback recording. The feedback display control unit 45 controls the screen control board 26 to make the LCD screen 21 display the bounce feedback, and the training recording module 6 records the training data and generates a training report.

[0054] Through the above process, this embodiment sets the dynamic training scene display area of ​​the LCD screen 21 to correspond with the infrared laser receiving area of ​​the array photosensitive plate 22, enabling the photosensitive plate LCD screen training target 2 to complete dynamic display and photosensitive coordinate acquisition on the same training target surface. The hit coordinates are directly obtained by the array photosensitive plate 22 and the photosensitive sampling circuit 27, without relying on cameras, CCDs, or visual recognition methods to obtain infrared laser hit coordinates. The calibration module 3 establishes the mapping relationship between the photosensitive coordinates and the screen display coordinates. The training control host 4 converts the photosensitive coordinates into screen hit coordinates. The impact calculation and evaluation module 5 converts the screen hit coordinates into virtual shell impact points for artillery, and combines the target motion state and virtual flight delay to generate hit results, correction prompts, and training scores, thereby forming a closed loop for artillery weapon simulation training.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any equivalent substitutions, modifications, or variations made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A simulated training device for artillery weapons based on infrared laser and photosensitive LCD screen, comprising an artillery training firing terminal, a photosensitive LCD screen training target, a calibration module, a training control host, a projectile impact calculation and evaluation module, and a training recording module, characterized in that: The artillery training firing terminal is communicatively connected to the training control host. The photosensitive plate LCD screen training target is also communicatively connected to the training control host. The calibration module is connected to both the photosensitive plate LCD screen training target and the training control host. The impact calculation and evaluation module is connected to the training control host. The training recording module is also connected to the training control host. The artillery training firing terminal emits coded infrared lasers towards the photosensitive plate LCD screen training target. The photosensitive plate LCD screen training target includes an LCD display screen, an array of photosensitive plates, and a photosensitive sampling circuit. The LCD display screen is used to display artillery training scenarios. The array-type photosensitive plate and photosensitive sampling circuit are used to directly acquire the infrared laser hit position and form photosensitive coordinates. These photosensitive coordinates are not obtained through cameras, CCDs, or visual recognition methods. The calibration module establishes a mapping relationship between the photosensitive coordinate system and the screen display coordinate system. The training control host converts the photosensitive coordinates into screen hit coordinates according to the mapping relationship. The impact calculation and evaluation module generates virtual impact points, hit results, correction prompts, and training scores based on the screen hit coordinates, artillery type, ammunition type, virtual range, target motion state, lead, and environmental correction parameters.

2. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 1, characterized in that, The artillery training firing terminal consists of a training launcher, an adjustable mounting base, an infrared laser emitter, a firing signal acquisition unit, an azimuth acquisition unit, an elevation and low angle acquisition unit, an identification coding unit, and a firing parameter input unit. The adjustable mounting base is located at the front end of the training launcher or on the aiming reference axis. The infrared laser emitter is fixed on the adjustable mounting base and arranged along the aiming reference direction of the training launcher. The firing signal acquisition unit is located at the firing operation position of the training launcher. The azimuth and elevation and low angle acquisition units are located at the attitude acquisition positions of the training launcher. The identification coding unit is connected to the infrared laser emitter or the training control host. The firing parameter input unit is communicatively connected to the training control host.

3. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 1, characterized in that, The photosensitive plate LCD screen training target is composed of at least one of the following: LCD screen, array photosensitive plate, mounting frame, screen control board, photosensitive sampling circuit, infrared transmission protective layer, and infrared light guide layer. The LCD screen is fixed in the mounting frame and located on the display side of the training target. The array photosensitive plate is set to correspond to the effective display area of ​​the LCD screen. The screen control board is connected to the LCD screen. The photosensitive sampling circuit is connected to the array photosensitive plate.

4. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 3, characterized in that, The array-type photosensitive plate is formed by arranging multiple photosensitive receiving units. These multiple photosensitive receiving units are arranged in a row-column matrix, a partition matrix, a bar scanning array, an edge light guide receiving array, or a combination of the above. The receiving areas of the multiple photosensitive receiving units correspond to the effective display area of ​​the liquid crystal display screen. After the infrared laser enters the receiving area of ​​the array-type photosensitive plate through the infrared transmission protective layer or the infrared light guide layer, it causes the corresponding photosensitive receiving unit to generate a photosensitive signal.

5. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 4, characterized in that, The photosensitive sampling circuit consists of a filter circuit, an amplifier circuit, a comparator circuit, a gating circuit, an analog-to-digital converter circuit, and a processing circuit. The filter circuit is connected to the array-type photosensitive plate, the amplifier circuit is connected to the filter circuit, the comparator circuit is connected to the amplifier circuit, the gating circuit is connected to multiple photosensitive receiving units, the analog-to-digital converter circuit is connected to the amplifier circuit or the comparator circuit, and the processing circuit is connected to the gating circuit and the analog-to-digital converter circuit. The processing circuit forms photosensitive coordinates based on the position of the triggered photosensitive receiving unit, the signal strength, peak value, trigger timing, or coded pulse characteristics of adjacent photosensitive receiving units.

6. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 1, characterized in that, The calibration module consists of a calibration pattern generation unit, a calibration acquisition unit, and a mapping parameter generation unit. The calibration pattern generation unit is connected to the LCD screen, the calibration acquisition unit is connected to the photosensitive sampling circuit, and the mapping parameter generation unit is connected to the training control host. The calibration pattern generation unit controls the LCD screen to display calibration points, calibration lines, or grid patterns. The calibration acquisition unit receives the corresponding photosensitive positions acquired by the array photosensitive plate. The mapping parameter generation unit establishes a mapping relationship between the photosensitive coordinate system and the screen display coordinate system based on the position of the calibration pattern in the screen display coordinate system and the corresponding photosensitive position.

7. The artillery weapon simulation training device based on infrared laser and photosensitive LCD screen as described in claim 1, characterized in that, The bullet impact calculation and evaluation module consists of a virtual range setting unit, a shell type and ammunition setting unit, a target motion setting unit, a target motion calculation unit, a flight delay calculation unit, a bullet impact deviation calculation unit, a hit determination unit, a correction prompt unit, and a scoring unit. The virtual range setting unit, shell type and ammunition setting unit, and target motion setting unit are respectively connected to the training control host. The target motion calculation unit is connected to the target motion setting unit and the flight delay calculation unit. The flight delay calculation unit is connected to the virtual range setting unit and the shell type and ammunition setting unit. The bullet impact deviation calculation unit is connected to the training control host and the target motion calculation unit. The calculation unit is connected to the flight delay calculation unit. The flight delay calculation unit determines the virtual flight delay based on the type of artillery, the type of ammunition, and the virtual range. The target motion calculation unit determines the predicted position of the target at the moment of impact based on the target motion direction, the target motion speed, and the virtual flight delay. The impact deviation calculation unit generates a virtual impact point and calculates the lateral and longitudinal deviations based on the screen hit coordinates, the set lead, and the environmental correction parameters. The hit determination unit generates a hit, near miss, or miss result based on the lateral deviation, the longitudinal deviation, and the target determination area. The correction prompt unit generates a direction correction prompt. The scoring unit generates a training score.

8. A method for simulating training artillery weapons based on infrared laser and photosensitive LCD screen, characterized in that, The artillery weapon simulation training device based on infrared laser and photosensitive plate liquid crystal screen as described in any one of claims 1 to 7, the method includes setting up training, establishing training subjects and setting artillery type, ammunition type, virtual range, target type, target motion status and scoring rules through the training control host; and displaying the scene, displaying artillery training scene, target status and training prompts through the liquid crystal screen. The process involves: coordinate calibration, establishing a mapping between the photosensitive coordinate system of the array-type photosensitive plate and the screen display coordinate system of the LCD screen through the calibration module; aiming and firing, whereby the infrared laser emitter emits coded infrared laser towards the training target on the photosensitive plate LCD screen along the aiming reference direction of the training emitter; photosensitive acquisition, forming photosensitive coordinates through the array-type photosensitive plate and photosensitive sampling circuit; coordinate transformation, converting the photosensitive coordinates into screen hit coordinates through the training control host; and impact calculation, generating a virtual impact point through the impact calculation and evaluation module. Evaluate the results and generate hit results, deviation direction, correction suggestions, and training scores; Feedback is recorded, the bounce feedback is displayed on the LCD screen, and a training report is generated through the training record module.

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